Glycemic Index/ Load and Mental Disorders

• Conditions: Depression; Psychological Distress; Anxiety
• Interventions: Other: GI/GL

• Registration Number: NCT02362113
• Lead Sponsor: Isfahan University of Medical Sciences

Brief Summary

A total of 300 adults would be included in the present cross-sectional study. glycemic index (GI) and glycemic load (GL) would be assessed by using a validated self-administered dish-based semi-quantitative food frequency questionnaire. Validated Iranian versions of Hospital Anxiety and Depression Scale and General Health Questionnaire-12 would be used to assess anxiety, depression and psychological distress.

Detailed Description

Frequency of 5 food groups will be asked in dish-based semi-quantitative food frequency questionnaire and they would be converted to grams. GI and GL will be estimated by using international table of GI and GL.

Validated Iranian versions of Hospital Anxiety and Depression Scale and General Health Questionnaire (GHQ)-12 were used to assess anxiety, depression and psychological distress.

Possible score range for anxiety and depression is from 0 to 21. Scores of 8 or higher on either section were considered as the presence of anxiety or depression and scores of 7 or less were considered as normal status. In the present study, participants who got scores of 4 or more from GHQ were considered to have psychological distress.

Study Timeline

• Study Start: 2014-12
• Status Verified: 2015-02
• Study First Submitted: 2015-02-02
• Study First Submitted QC: 2015-02-07
• Last Update Submitted: 2015-02-07
• Study First Posted: 2015-02-12
• Last Update Posted: 2015-02-12
• Primary Completion: 2015-04
• Study Completion: 2015-06

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 3000

Inclusion Criteria

• Men and women aged 18-75 years of free-living individuals.

Exclusion Criteria

• Over or underestimating of total energy intake
• Uncompleted questionnaire (more than 30% of questions)

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Isfahani adults	GI/GL	GI/GL

Primary Outcome Measures

Name	Time	Method
odds ratio for having depression resulted from statistical analysis	up to 4 months

Secondary Outcome Measures

Name	Time	Method
depression score resulted from Hospital Anxiety and Depression Scale	up to 6 months